TAIS CESSNA 150 COLLIDED WITH SNOW COVERED TERRAIN WHILE PRACTICING THE RESULTS OF 'GROUND EFFECT'. THE WEATHER WAS VMC AND NO FLIGHT PLAN WAS FILED. THE PILOT WAS NOT INJURED IN THE ACCIDENT. THE FLIGHT ORIGINATED AT FOND DU LAC WI AT 1200 CST ON FEB. 12, 1982. THE PILOT WAS FLYING LOCALLY OVER GREEN LAKE TO LOCATE A COMPANY. THE PILOT STATED THAT HE DECIDED TO CHANGE SEATS AND FLY FROM THE RIGHT SEAT. LATER HE DESCENDED OVER A LARGE FROZEN LAKE TO FLY CLOSER TO THE SNOW IN GROUND EFFECT TO 'IMPROVE HIS TECHNIQUE'. THE LANDING GEAR STRUCK THE SNOW COLLAPSING THE NOSE GEAR AND DAMAGINGTHE PROPELLER. THE ACFT SLID TO A STOP ON THE MAIN GEAR AND THE NOSE.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

Contributing Factors

LANDING GEAR,NOSE GEAR ASSEMBLY..OVERLOAD

Contributing Factors

TERRAIN CONDITION..SNOW COVERED

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